[options] class fix
[firefox] fixed messages from background to content
[firefox] don't open the options page if already open
[firefox] proper uloading of the extension
[jade][firefox] removed scripts in firefox
stopped using grep to remove the scripts, switch to a condition in jade
[firefox][options] added note about re-opening the page
the options page has to be closed and re-opened using the action button if the browser restarts